hw/ppc/spapr_iommu.c

   1 /*
   2  * QEMU sPAPR IOMMU (TCE) code
   3  *
   4  * Copyright (c) 2010 David Gibson, IBM Corporation <dwg@au1.ibm.com>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #include "qemu/osdep.h"
  20 #include "qemu/error-report.h"
  21 #include "hw/hw.h"
  22 #include "qemu/log.h"
  23 #include "sysemu/kvm.h"
  24 #include "hw/qdev.h"
  25 #include "kvm_ppc.h"
  26 #include "sysemu/dma.h"
  27 #include "exec/address-spaces.h"
  28 #include "trace.h"
  29
  30 #include "hw/ppc/spapr.h"
  31 #include "hw/ppc/spapr_vio.h"
  32
  33 #include <libfdt.h>
  34
  35 enum sPAPRTCEAccess {
  36     SPAPR_TCE_FAULT = 0,
  37     SPAPR_TCE_RO = 1,
  38     SPAPR_TCE_WO = 2,
  39     SPAPR_TCE_RW = 3,
  40 };
  41
  42 #define IOMMU_PAGE_SIZE(shift)      (1ULL << (shift))
  43 #define IOMMU_PAGE_MASK(shift)      (~(IOMMU_PAGE_SIZE(shift) - 1))
  44
  45 static QLIST_HEAD(spapr_tce_tables, sPAPRTCETable) spapr_tce_tables;
  46
  47 sPAPRTCETable *spapr_tce_find_by_liobn(target_ulong liobn)
  48 {
  49     sPAPRTCETable *tcet;
  50
  51     if (liobn & 0xFFFFFFFF00000000ULL) {
  52         hcall_dprintf("Request for out-of-bounds LIOBN 0x" TARGET_FMT_lx "\n",
  53                       liobn);
  54         return NULL;
  55     }
  56
  57     QLIST_FOREACH(tcet, &spapr_tce_tables, list) {
  58         if (tcet->liobn == (uint32_t)liobn) {
  59             return tcet;
  60         }
  61     }
  62
  63     return NULL;
  64 }
  65
  66 static IOMMUAccessFlags spapr_tce_iommu_access_flags(uint64_t tce)
  67 {
  68     switch (tce & SPAPR_TCE_RW) {
  69     case SPAPR_TCE_FAULT:
  70         return IOMMU_NONE;
  71     case SPAPR_TCE_RO:
  72         return IOMMU_RO;
  73     case SPAPR_TCE_WO:
  74         return IOMMU_WO;
  75     default: /* SPAPR_TCE_RW */
  76         return IOMMU_RW;
  77     }
  78 }
  79
  80 static uint64_t *spapr_tce_alloc_table(uint32_t liobn,
  81                                        uint32_t page_shift,
  82                                        uint32_t nb_table,
  83                                        int *fd,
  84                                        bool need_vfio)
  85 {
  86     uint64_t *table = NULL;
  87     uint64_t window_size = (uint64_t)nb_table << page_shift;
  88
  89     if (kvm_enabled() && !(window_size >> 32)) {
  90         table = kvmppc_create_spapr_tce(liobn, window_size, fd, need_vfio);
  91     }
  92
  93     if (!table) {
  94         *fd = -1;
  95         table = g_malloc0(nb_table * sizeof(uint64_t));
  96     }
  97
  98     trace_spapr_iommu_new_table(liobn, table, *fd);
  99
 100     return table;
 101 }
 102
 103 static void spapr_tce_free_table(uint64_t *table, int fd, uint32_t nb_table)
 104 {
 105     if (!kvm_enabled() ||
 106         (kvmppc_remove_spapr_tce(table, fd, nb_table) != 0)) {
 107         g_free(table);
 108     }
 109 }
 110
 111 /* Called from RCU critical section */
 112 static IOMMUTLBEntry spapr_tce_translate_iommu(MemoryRegion *iommu, hwaddr addr,
 113                                                bool is_write)
 114 {
 115     sPAPRTCETable *tcet = container_of(iommu, sPAPRTCETable, iommu);
 116     uint64_t tce;
 117     IOMMUTLBEntry ret = {
 118         .target_as = &address_space_memory,
 119         .iova = 0,
 120         .translated_addr = 0,
 121         .addr_mask = ~(hwaddr)0,
 122         .perm = IOMMU_NONE,
 123     };
 124
 125     if ((addr >> tcet->page_shift) < tcet->nb_table) {
 126         /* Check if we are in bound */
 127         hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 128
 129         tce = tcet->table[addr >> tcet->page_shift];
 130         ret.iova = addr & page_mask;
 131         ret.translated_addr = tce & page_mask;
 132         ret.addr_mask = ~page_mask;
 133         ret.perm = spapr_tce_iommu_access_flags(tce);
 134     }
 135     trace_spapr_iommu_xlate(tcet->liobn, addr, ret.iova, ret.perm,
 136                             ret.addr_mask);
 137
 138     return ret;
 139 }
 140
 141 static void spapr_tce_table_pre_save(void *opaque)
 142 {
 143     sPAPRTCETable *tcet = SPAPR_TCE_TABLE(opaque);
 144
 145     tcet->mig_table = tcet->table;
 146     tcet->mig_nb_table = tcet->nb_table;
 147
 148     trace_spapr_iommu_pre_save(tcet->liobn, tcet->mig_nb_table,
 149                                tcet->bus_offset, tcet->page_shift);
 150 }
 151
 152 static uint64_t spapr_tce_get_min_page_size(MemoryRegion *iommu)
 153 {
 154     sPAPRTCETable *tcet = container_of(iommu, sPAPRTCETable, iommu);
 155
 156     return 1ULL << tcet->page_shift;
 157 }
 158
 159 static void spapr_tce_notify_started(MemoryRegion *iommu)
 160 {
 161     spapr_tce_set_need_vfio(container_of(iommu, sPAPRTCETable, iommu), true);
 162 }
 163
 164 static void spapr_tce_notify_stopped(MemoryRegion *iommu)
 165 {
 166     spapr_tce_set_need_vfio(container_of(iommu, sPAPRTCETable, iommu), false);
 167 }
 168
 169 static int spapr_tce_table_post_load(void *opaque, int version_id)
 170 {
 171     sPAPRTCETable *tcet = SPAPR_TCE_TABLE(opaque);
 172     uint32_t old_nb_table = tcet->nb_table;
 173     uint64_t old_bus_offset = tcet->bus_offset;
 174     uint32_t old_page_shift = tcet->page_shift;
 175
 176     if (tcet->vdev) {
 177         spapr_vio_set_bypass(tcet->vdev, tcet->bypass);
 178     }
 179
 180     if (tcet->mig_nb_table != tcet->nb_table) {
 181         spapr_tce_table_disable(tcet);
 182     }
 183
 184     if (tcet->mig_nb_table) {
 185         if (!tcet->nb_table) {
 186             spapr_tce_table_enable(tcet, old_page_shift, old_bus_offset,
 187                                    tcet->mig_nb_table);
 188         }
 189
 190         memcpy(tcet->table, tcet->mig_table,
 191                tcet->nb_table * sizeof(tcet->table[0]));
 192
 193         free(tcet->mig_table);
 194         tcet->mig_table = NULL;
 195     }
 196
 197     trace_spapr_iommu_post_load(tcet->liobn, old_nb_table, tcet->nb_table,
 198                                 tcet->bus_offset, tcet->page_shift);
 199
 200     return 0;
 201 }
 202
 203 static bool spapr_tce_table_ex_needed(void *opaque)
 204 {
 205     sPAPRTCETable *tcet = opaque;
 206
 207     return tcet->bus_offset || tcet->page_shift != 0xC;
 208 }
 209
 210 static const VMStateDescription vmstate_spapr_tce_table_ex = {
 211     .name = "spapr_iommu_ex",
 212     .version_id = 1,
 213     .minimum_version_id = 1,
 214     .needed = spapr_tce_table_ex_needed,
 215     .fields = (VMStateField[]) {
 216         VMSTATE_UINT64(bus_offset, sPAPRTCETable),
 217         VMSTATE_UINT32(page_shift, sPAPRTCETable),
 218         VMSTATE_END_OF_LIST()
 219     },
 220 };
 221
 222 static const VMStateDescription vmstate_spapr_tce_table = {
 223     .name = "spapr_iommu",
 224     .version_id = 2,
 225     .minimum_version_id = 2,
 226     .pre_save = spapr_tce_table_pre_save,
 227     .post_load = spapr_tce_table_post_load,
 228     .fields      = (VMStateField []) {
 229         /* Sanity check */
 230         VMSTATE_UINT32_EQUAL(liobn, sPAPRTCETable),
 231
 232         /* IOMMU state */
 233         VMSTATE_UINT32(mig_nb_table, sPAPRTCETable),
 234         VMSTATE_BOOL(bypass, sPAPRTCETable),
 235         VMSTATE_VARRAY_UINT32_ALLOC(mig_table, sPAPRTCETable, mig_nb_table, 0,
 236                                     vmstate_info_uint64, uint64_t),
 237
 238         VMSTATE_END_OF_LIST()
 239     },
 240     .subsections = (const VMStateDescription*[]) {
 241         &vmstate_spapr_tce_table_ex,
 242         NULL
 243     }
 244 };
 245
 246 static MemoryRegionIOMMUOps spapr_iommu_ops = {
 247     .translate = spapr_tce_translate_iommu,
 248     .get_min_page_size = spapr_tce_get_min_page_size,
 249     .notify_started = spapr_tce_notify_started,
 250     .notify_stopped = spapr_tce_notify_stopped,
 251 };
 252
 253 static int spapr_tce_table_realize(DeviceState *dev)
 254 {
 255     sPAPRTCETable *tcet = SPAPR_TCE_TABLE(dev);
 256     Object *tcetobj = OBJECT(tcet);
 257     char tmp[32];
 258
 259     tcet->fd = -1;
 260     tcet->need_vfio = false;
 261     snprintf(tmp, sizeof(tmp), "tce-root-%x", tcet->liobn);
 262     memory_region_init(&tcet->root, tcetobj, tmp, UINT64_MAX);
 263
 264     snprintf(tmp, sizeof(tmp), "tce-iommu-%x", tcet->liobn);
 265     memory_region_init_iommu(&tcet->iommu, tcetobj, &spapr_iommu_ops, tmp, 0);
 266
 267     QLIST_INSERT_HEAD(&spapr_tce_tables, tcet, list);
 268
 269     vmstate_register(DEVICE(tcet), tcet->liobn, &vmstate_spapr_tce_table,
 270                      tcet);
 271
 272     return 0;
 273 }
 274
 275 void spapr_tce_set_need_vfio(sPAPRTCETable *tcet, bool need_vfio)
 276 {
 277     size_t table_size = tcet->nb_table * sizeof(uint64_t);
 278     void *newtable;
 279
 280     if (need_vfio == tcet->need_vfio) {
 281         /* Nothing to do */
 282         return;
 283     }
 284
 285     if (!need_vfio) {
 286         /* FIXME: We don't support transition back to KVM accelerated
 287          * TCEs yet */
 288         return;
 289     }
 290
 291     tcet->need_vfio = true;
 292
 293     if (tcet->fd < 0) {
 294         /* Table is already in userspace, nothing to be do */
 295         return;
 296     }
 297
 298     newtable = g_malloc(table_size);
 299     memcpy(newtable, tcet->table, table_size);
 300
 301     kvmppc_remove_spapr_tce(tcet->table, tcet->fd, tcet->nb_table);
 302
 303     tcet->fd = -1;
 304     tcet->table = newtable;
 305 }
 306
 307 sPAPRTCETable *spapr_tce_new_table(DeviceState *owner, uint32_t liobn)
 308 {
 309     sPAPRTCETable *tcet;
 310     char tmp[32];
 311
 312     if (spapr_tce_find_by_liobn(liobn)) {
 313         fprintf(stderr, "Attempted to create TCE table with duplicate"
 314                 " LIOBN 0x%x\n", liobn);
 315         return NULL;
 316     }
 317
 318     tcet = SPAPR_TCE_TABLE(object_new(TYPE_SPAPR_TCE_TABLE));
 319     tcet->liobn = liobn;
 320
 321     snprintf(tmp, sizeof(tmp), "tce-table-%x", liobn);
 322     object_property_add_child(OBJECT(owner), tmp, OBJECT(tcet), NULL);
 323
 324     object_property_set_bool(OBJECT(tcet), true, "realized", NULL);
 325
 326     return tcet;
 327 }
 328
 329 void spapr_tce_table_enable(sPAPRTCETable *tcet,
 330                             uint32_t page_shift, uint64_t bus_offset,
 331                             uint32_t nb_table)
 332 {
 333     if (tcet->nb_table) {
 334         error_report("Warning: trying to enable already enabled TCE table");
 335         return;
 336     }
 337
 338     tcet->bus_offset = bus_offset;
 339     tcet->page_shift = page_shift;
 340     tcet->nb_table = nb_table;
 341     tcet->table = spapr_tce_alloc_table(tcet->liobn,
 342                                         tcet->page_shift,
 343                                         tcet->nb_table,
 344                                         &tcet->fd,
 345                                         tcet->need_vfio);
 346
 347     memory_region_set_size(&tcet->iommu,
 348                            (uint64_t)tcet->nb_table << tcet->page_shift);
 349     memory_region_add_subregion(&tcet->root, tcet->bus_offset, &tcet->iommu);
 350 }
 351
 352 void spapr_tce_table_disable(sPAPRTCETable *tcet)
 353 {
 354     if (!tcet->nb_table) {
 355         return;
 356     }
 357
 358     memory_region_del_subregion(&tcet->root, &tcet->iommu);
 359     memory_region_set_size(&tcet->iommu, 0);
 360
 361     spapr_tce_free_table(tcet->table, tcet->fd, tcet->nb_table);
 362     tcet->fd = -1;
 363     tcet->table = NULL;
 364     tcet->bus_offset = 0;
 365     tcet->page_shift = 0;
 366     tcet->nb_table = 0;
 367 }
 368
 369 static void spapr_tce_table_unrealize(DeviceState *dev, Error **errp)
 370 {
 371     sPAPRTCETable *tcet = SPAPR_TCE_TABLE(dev);
 372
 373     QLIST_REMOVE(tcet, list);
 374
 375     spapr_tce_table_disable(tcet);
 376 }
 377
 378 MemoryRegion *spapr_tce_get_iommu(sPAPRTCETable *tcet)
 379 {
 380     return &tcet->root;
 381 }
 382
 383 static void spapr_tce_reset(DeviceState *dev)
 384 {
 385     sPAPRTCETable *tcet = SPAPR_TCE_TABLE(dev);
 386     size_t table_size = tcet->nb_table * sizeof(uint64_t);
 387
 388     memset(tcet->table, 0, table_size);
 389 }
 390
 391 static target_ulong put_tce_emu(sPAPRTCETable *tcet, target_ulong ioba,
 392                                 target_ulong tce)
 393 {
 394     IOMMUTLBEntry entry;
 395     hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 396     unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift;
 397
 398     if (index >= tcet->nb_table) {
 399         hcall_dprintf("spapr_vio_put_tce on out-of-bounds IOBA 0x"
 400                       TARGET_FMT_lx "\n", ioba);
 401         return H_PARAMETER;
 402     }
 403
 404     tcet->table[index] = tce;
 405
 406     entry.target_as = &address_space_memory,
 407     entry.iova = (ioba - tcet->bus_offset) & page_mask;
 408     entry.translated_addr = tce & page_mask;
 409     entry.addr_mask = ~page_mask;
 410     entry.perm = spapr_tce_iommu_access_flags(tce);
 411     memory_region_notify_iommu(&tcet->iommu, entry);
 412
 413     return H_SUCCESS;
 414 }
 415
 416 static target_ulong h_put_tce_indirect(PowerPCCPU *cpu,
 417                                        sPAPRMachineState *spapr,
 418                                        target_ulong opcode, target_ulong *args)
 419 {
 420     int i;
 421     target_ulong liobn = args[0];
 422     target_ulong ioba = args[1];
 423     target_ulong ioba1 = ioba;
 424     target_ulong tce_list = args[2];
 425     target_ulong npages = args[3];
 426     target_ulong ret = H_PARAMETER, tce = 0;
 427     sPAPRTCETable *tcet = spapr_tce_find_by_liobn(liobn);
 428     CPUState *cs = CPU(cpu);
 429     hwaddr page_mask, page_size;
 430
 431     if (!tcet) {
 432         return H_PARAMETER;
 433     }
 434
 435     if ((npages > 512) || (tce_list & SPAPR_TCE_PAGE_MASK)) {
 436         return H_PARAMETER;
 437     }
 438
 439     page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 440     page_size = IOMMU_PAGE_SIZE(tcet->page_shift);
 441     ioba &= page_mask;
 442
 443     for (i = 0; i < npages; ++i, ioba += page_size) {
 444         tce = ldq_be_phys(cs->as, tce_list + i * sizeof(target_ulong));
 445
 446         ret = put_tce_emu(tcet, ioba, tce);
 447         if (ret) {
 448             break;
 449         }
 450     }
 451
 452     /* Trace last successful or the first problematic entry */
 453     i = i ? (i - 1) : 0;
 454     if (SPAPR_IS_PCI_LIOBN(liobn)) {
 455         trace_spapr_iommu_pci_indirect(liobn, ioba1, tce_list, i, tce, ret);
 456     } else {
 457         trace_spapr_iommu_indirect(liobn, ioba1, tce_list, i, tce, ret);
 458     }
 459     return ret;
 460 }
 461
 462 static target_ulong h_stuff_tce(PowerPCCPU *cpu, sPAPRMachineState *spapr,
 463                               target_ulong opcode, target_ulong *args)
 464 {
 465     int i;
 466     target_ulong liobn = args[0];
 467     target_ulong ioba = args[1];
 468     target_ulong tce_value = args[2];
 469     target_ulong npages = args[3];
 470     target_ulong ret = H_PARAMETER;
 471     sPAPRTCETable *tcet = spapr_tce_find_by_liobn(liobn);
 472     hwaddr page_mask, page_size;
 473
 474     if (!tcet) {
 475         return H_PARAMETER;
 476     }
 477
 478     if (npages > tcet->nb_table) {
 479         return H_PARAMETER;
 480     }
 481
 482     page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 483     page_size = IOMMU_PAGE_SIZE(tcet->page_shift);
 484     ioba &= page_mask;
 485
 486     for (i = 0; i < npages; ++i, ioba += page_size) {
 487         ret = put_tce_emu(tcet, ioba, tce_value);
 488         if (ret) {
 489             break;
 490         }
 491     }
 492     if (SPAPR_IS_PCI_LIOBN(liobn)) {
 493         trace_spapr_iommu_pci_stuff(liobn, ioba, tce_value, npages, ret);
 494     } else {
 495         trace_spapr_iommu_stuff(liobn, ioba, tce_value, npages, ret);
 496     }
 497
 498     return ret;
 499 }
 500
 501 static target_ulong h_put_tce(PowerPCCPU *cpu, sPAPRMachineState *spapr,
 502                               target_ulong opcode, target_ulong *args)
 503 {
 504     target_ulong liobn = args[0];
 505     target_ulong ioba = args[1];
 506     target_ulong tce = args[2];
 507     target_ulong ret = H_PARAMETER;
 508     sPAPRTCETable *tcet = spapr_tce_find_by_liobn(liobn);
 509
 510     if (tcet) {
 511         hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 512
 513         ioba &= page_mask;
 514
 515         ret = put_tce_emu(tcet, ioba, tce);
 516     }
 517     if (SPAPR_IS_PCI_LIOBN(liobn)) {
 518         trace_spapr_iommu_pci_put(liobn, ioba, tce, ret);
 519     } else {
 520         trace_spapr_iommu_put(liobn, ioba, tce, ret);
 521     }
 522
 523     return ret;
 524 }
 525
 526 static target_ulong get_tce_emu(sPAPRTCETable *tcet, target_ulong ioba,
 527                                 target_ulong *tce)
 528 {
 529     unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift;
 530
 531     if (index >= tcet->nb_table) {
 532         hcall_dprintf("spapr_iommu_get_tce on out-of-bounds IOBA 0x"
 533                       TARGET_FMT_lx "\n", ioba);
 534         return H_PARAMETER;
 535     }
 536
 537     *tce = tcet->table[index];
 538
 539     return H_SUCCESS;
 540 }
 541
 542 static target_ulong h_get_tce(PowerPCCPU *cpu, sPAPRMachineState *spapr,
 543                               target_ulong opcode, target_ulong *args)
 544 {
 545     target_ulong liobn = args[0];
 546     target_ulong ioba = args[1];
 547     target_ulong tce = 0;
 548     target_ulong ret = H_PARAMETER;
 549     sPAPRTCETable *tcet = spapr_tce_find_by_liobn(liobn);
 550
 551     if (tcet) {
 552         hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
 553
 554         ioba &= page_mask;
 555
 556         ret = get_tce_emu(tcet, ioba, &tce);
 557         if (!ret) {
 558             args[0] = tce;
 559         }
 560     }
 561     if (SPAPR_IS_PCI_LIOBN(liobn)) {
 562         trace_spapr_iommu_pci_get(liobn, ioba, ret, tce);
 563     } else {
 564         trace_spapr_iommu_get(liobn, ioba, ret, tce);
 565     }
 566
 567     return ret;
 568 }
 569
 570 int spapr_dma_dt(void *fdt, int node_off, const char *propname,
 571                  uint32_t liobn, uint64_t window, uint32_t size)
 572 {
 573     uint32_t dma_prop[5];
 574     int ret;
 575
 576     dma_prop[0] = cpu_to_be32(liobn);
 577     dma_prop[1] = cpu_to_be32(window >> 32);
 578     dma_prop[2] = cpu_to_be32(window & 0xFFFFFFFF);
 579     dma_prop[3] = 0; /* window size is 32 bits */
 580     dma_prop[4] = cpu_to_be32(size);
 581
 582     ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-address-cells", 2);
 583     if (ret < 0) {
 584         return ret;
 585     }
 586
 587     ret = fdt_setprop_cell(fdt, node_off, "ibm,#dma-size-cells", 2);
 588     if (ret < 0) {
 589         return ret;
 590     }
 591
 592     ret = fdt_setprop(fdt, node_off, propname, dma_prop, sizeof(dma_prop));
 593     if (ret < 0) {
 594         return ret;
 595     }
 596
 597     return 0;
 598 }
 599
 600 int spapr_tcet_dma_dt(void *fdt, int node_off, const char *propname,
 601                       sPAPRTCETable *tcet)
 602 {
 603     if (!tcet) {
 604         return 0;
 605     }
 606
 607     return spapr_dma_dt(fdt, node_off, propname,
 608                         tcet->liobn, 0, tcet->nb_table << tcet->page_shift);
 609 }
 610
 611 static void spapr_tce_table_class_init(ObjectClass *klass, void *data)
 612 {
 613     DeviceClass *dc = DEVICE_CLASS(klass);
 614     dc->init = spapr_tce_table_realize;
 615     dc->reset = spapr_tce_reset;
 616     dc->unrealize = spapr_tce_table_unrealize;
 617
 618     QLIST_INIT(&spapr_tce_tables);
 619
 620     /* hcall-tce */
 621     spapr_register_hypercall(H_PUT_TCE, h_put_tce);
 622     spapr_register_hypercall(H_GET_TCE, h_get_tce);
 623     spapr_register_hypercall(H_PUT_TCE_INDIRECT, h_put_tce_indirect);
 624     spapr_register_hypercall(H_STUFF_TCE, h_stuff_tce);
 625 }
 626
 627 static TypeInfo spapr_tce_table_info = {
 628     .name = TYPE_SPAPR_TCE_TABLE,
 629     .parent = TYPE_DEVICE,
 630     .instance_size = sizeof(sPAPRTCETable),
 631     .class_init = spapr_tce_table_class_init,
 632 };
 633
 634 static void register_types(void)
 635 {
 636     type_register_static(&spapr_tce_table_info);
 637 }
 638
 639 type_init(register_types);